jafo writes: I can't imagine that even the most steadfast haters of Lucas' meddling in the series won't warm their cold, cold hearts a little when the new release brings the awesomeness of light sabers to the Tokyo subway system. As a promotional tie-in, the handrails have been outfitted with stickers, LEDs, and buttons, turning them into fully-functional (well, almost) Jedi weapons. Be careful, Tokyo, of what part of the handrail you reach out for!
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals